Antislipping device



March 9, 1943. E. F. BLOCK ANTISLIPPINGDEVICE 2 Sheets-Sheet 1 FiledMarch 4, 1942 Inventor I ANTiSLIPPING DEVICE Filed Marbh 4, 1942: 2Sheet's-Sheei 2 Inventor M? F a/ C/F Patented Mar. 9, 1943 UNiTED STATESnTEN'l OFFICE";

1 Claim.

The present invention relates to new and useful improvements inanti-slipping devices, and has for one of its important objects toprovide, in a manner as hereinafter set forth, an article of thischaracter which is adapted to be expeditiously applied and worn on ashoe, boot or other conventional footwear.

Another very important object of the invention is to provide ananti-slipping device of the aforementioned character comprising a novelconstruction and arrangement whereby the tread portion, comprising thegripping elements, will be located beneath the instep in abuttingengagement with the heel of the shoe, boot, et cetera.

Other objects of the invention are to provide an anti-slipping device ofthe character described which will be comparatively simple inconstruction, strong, durable, highly eflicient and reliable in use,compact, light in weight, attractive in appearance, comfortable,adaptable for easy carrying by compact folding for emergency purposes,and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of theinvention will become apparent from a study of the followingspecification, taken in connection with the accompanying drawingswherein like characters of reference designate corresponding partsthroughout the several views, and wherein:

Figure 1 is a perspective view, showing an antislipping deviceconstructed in accordance with the, present invention in position on thefoot and ready to be fastened.

Figure 2 is a view principally in cross-section through the lowerportion of the device and the shoe on which it is mounted.

Figure 3 is a bottom plan view of the; tread portion of the device.

Figure 4 is a plan view of the blanks from which the upper is formed.

Figure 5 is a perspective view of the upper lamination of the tread.

Figure 6 is a detail view in side elevation of one of the calk retainingtubes.

Figure '7 is a detail view in perspective of one of the straps fromwhich the buckle securing loops are formed.

- Referring now to the drawings in detail, it will be seen that theembodiment of the invention which has been illustrated comprises a treadwhich is designated generally by reference numeral I. As illustrated toadvantage in Figure 2 of the drawings, the tread l includes a toplamination 2 and a bottom lamination 3 of comparatively thick or heavyleather, said laminations being stitched or riveted together at l.

Extending vertically through the lower lamination 3 of the tread l is aplurality of internally threaded tubes 5. The tubes 5 include, on theirupper ends, external flanges 6 which are countersunk in the lowerlamination 3. Depending from the flanges 6 are prongs or the like Iwhich are embedded in the lower lamination 3. Threadedly mounted in thetubes 5 are removable calks 8. The calks 8 are of the shape shown toadvantage in Figure 2 of the drawings and include flanges 9 which abutthe lower lamination 3 and the lower ends of the tubes 5.

The tread l is engageable beneath the instep portion H) of aconventional shoe H, for example, and is adapted to abut the front orbreast of the heel l2 of said shoe.

Reference numeral I3 designates generally an upper in the form of astrap of suitable flexible material having its end portions secured onthe marginal side portions of the tread I by the stitching 5. The upperI3 includes a pair of substantially triangular members I4 having one endsecured together, their other ends being connected at 4 to the tread l.Mounted on the front portions of the members It are loops l5 which areformed from leather straps. Fastening elements l6 are mounted in theloops 15 for adjustably and detachably connecting the front portions ofthe upper I3 over the arch of the foot. In lieu of the elements 15 andI6, Dot or other suitable fasteners may be used.

It is thought that the manner in which the device functions will bereadily apparent from a consideration of the foregoing. The heel or rearportion of the shoe II is inserted in the upper 13 in a manner to bringthe tread l beneath the instep H) in abutting engagement with the heell2. The upper I3 is formed to extend comfortably around the back of thefoot just above the heel, in which position it is secured by the buckleelements It. The construction and arrangement is such that any forwardor rearward movement of the tread I beneath the shoe is positivelyprevented. Should the calks 8 become worn, they may be expeditiouslyremoved for replacement.

It is believed that the many advantages of an anti-slipping deviceconstructed in accordance with the present invention will be readilyunderstood, and although a preferred embodiment of said device is asillustrated and described, it

is to be understood that changes in the details of construction may beresorted to which fall within the scope of the invention as claimed. Forexample, calks substantially similar to the elements 8 may be securelyand permanently riveted to the tread l.

What is claimed is:

An anti-slipping device of the character described comprising a treadengageable beneath the instep of a shoe and adapted to abut the heel ofsaid shoe. said tread including top and bottom laminations securedtogether, tubes mounted in the lower lamination, removable calksthreadedly mounted in said tubes, and means for securing the tread inposition beneath the shoe, said means comprising a strap adapted toextend around the back of the foot and including a pair of substantiallytriangular members having one end secured together and their other endssecured to the tread, and coacting fasteners for detachably connectingthe front 10 portions of said members.

EMIL F. BLOCK.

